In HVAC , testing, adjusting and balancing (TAB) are the three major steps used to achieve proper operation of heating, ventilation and air conditioning systems.
It is important that these key components are regulated to the highest standard to avoid discomfort, poor air quality and poor system performance.
Balancing is the methodical regulation of system fluid flows (air or water) through the use of acceptable procedures to achieve the desired or specified design airflow or water flow
